Facial inhaler.



C. K. TETER.

FACIA'. INHALERF APPLICATION man sErT. s, 191

Patented Get. 30,1917

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i To all whom it. may concern:

UNITED STATES ,PATENT oEEICE.^ l

cminLEs n, TETEB., or cLEvELANn-Lomo, AssIGNon To 'THE TETEE. minuc-TUBING COMPANY, or CLEVELAND, omo, A coaroaa'rron 0F omo.`

FacIAL INHALEB.

Application illed September 9,'19'12'. Serial VIlo.. 719,88*@7..

Be it known-that I, CHARLES TETER, a citizen of the United States,residing at Cleveland, in the county f Cuyahoga and, State of Ohio, haveinvented certain newA hand useful Improvements in Facial Inhalers, ofwhich the following is a specification. ,i v y y My invention relates toimprovements in a facial inhaler, designed for .use in connection withanesthetizing apparatus, and has for `its object the provisionnrst, ofan inhaling device, which will self-adapting to thefeatures of thepatient, for the purpose of excluding the air; second, which willpermit-the observation of the patients features, for the4 purpose ofdetecting any retching; third, which provides a positive,adjustressure-valve, and finall one which may e readily and efectuallysterilized. The structural details of myimprovement will be more readilyunderstood, 'by making4 reference to` the accompanying drawings, whereini Y Figure I, is a view in side elevation of my im roved facial inhaler.

igs. II, andlII,l are enlargedflongitudinal sectional Niews of theadjustable positive pressure-valve, preferably employed therein.

' terial, prefere l Fig. IV, is a transverse sectional viewof said valveon line IV-IV. i Fig. V, is an under-side plan view, pary tiallybrokenaway, of my improved inhaler,

and v v Fig. VI, is an enlarged fragmentary kview of the, pressure-gage.,i Throughout the several figures of the drawings, I have employed thesame character of reference to indicate similar parts. y

In order kto observe the features ofthe patient at all timesI provide asubstantially bell-sha ed body a of transparent mab celluloid. About theouter rim of said y, there is secured the oval pneumatic -cushion b,providedA with a substantially 'circular Vapron e integral `therewith,and formed of soft rubber. The said apronfits closely upon the loweredge or l trim of the body a, while the pneumatic cushion, which isadapted to be injlated through the valve d, provides a self-conformingmember, Vwhich fits over the nose t t `This is important,

Patented oct. 3o, ieri.

' and about the mouth ofI the patient, so

closely, -as ,to exclude the air therefromg" Under these circumstances,'the `patient is compelledto breathe the anesthetizing va# ors or gasessupplied to thebell-shaped body, through the angular-duct e.` In orderIto maintain apositive, determinable pres@ upper surface of the body a.Accordingly,`""`

these members are so disposed as to-'aiord the least interference withthe observation by thesurgeon of the patients condition, through"t-heltransparent Celluloid `walls a.

This material is preferred, not only because of its transparency, but itis light in weight,

` flexible and yet suilicientffly rigid, to mount the valve and ductthereon y In order to increaselthe absorption by the blood, oftheanesthetizing gases .or vapors,""""

rovide .'75`

for

the positive pressi'l're-valve is insuring a constantpressure wlthin therespiratory ordans of the patient. This valve comprises t e aluminumdisk gv normally 'closing the valve-opening, under the tensioni* ofspring li, positioned interiorly of the slotted tube i. At the sideofsaid tubeis :a graduated scale indicating the compression of the spring,necessary toA securegas pressures ranging between two" (2)` and-U1xytwenty-four millimeters, for example.` The exterior sleeve j has `aset-screw k which turns within the cylindrical plug'l` positioned rabovethe upper end of` spring Thus the valve may be set at any des1red"-`pressure, and will require'no attention `upon the part of the operatori"It willbe observed that'the valve-partfor disk gis provided with'arelatively longdepending stem m, 4which slides readily'with-l in the`sleeve ln, but serves to center said disk g, and seat it closely andevenly,to `fclose the valve-opening.

The valve and duct are removably secured to the Celluloid body, by meansof interposed rubber washers @,and interior screw rings 71,' `whichafford substantially gas-tight' joints between these parts. i fortheieasonfthat/an essentially novel and distinct method of whereinsuper-atmospheric pressure is s'e cured by suitable means.

VInasmucli as my inlialer is adapted to close or cover both the nose'and mouth, while a definite adjustable gas-pressure may be maintainedtherein. and in the respir atory organs of thepatient, it is clear thatthe lungs willnot suffer collapse but may be distended thereby,throughout anesthesia or indeed, as long as is required. lMoreover,

Vsuch pressure is subject at all times to the control or accurateregulation of the surgeon or operative, dependent upon the varyingcondition of the patient.

It will be lobserved that ythe pneumatic cushion is disposed immediatelybeneath the 'edges` of the Celluloid body-portion,` Iwhereby thepressure upon the face of the patient may e light and yet suflicient topermit any necessary working-pressure for the anesthetic.

Casual consideration will show that all the parts of my inhaler arereadily accessible for inspection, replacemeiit'or adjustment, and thatthey are so designed as to permit of very ready and effectualsterilization. The rubber cushion and apron may be replaced at smallcost, while thev other parts are not subject to deterioration or damagefrom ordinary use. i

Having nowV described the preferred em bodiment of my invention, I claimas newv and desire to secure'by Letters Patent, the following 1.The-combinationwith an inhaling device having an inhaler-member, of anassociated valve affording a relatively large clearance therefor; aspring normally acting to close said valve, an adjustable part for`varying the `tension exerted by the spring against the Valve, a slottedcasing for the spring, and a gage associated therewith; all visibly andaccessibly mounted upon the inhaler-member, substantially as sot forth.

2. The combination with an inhaling device, having an inhaler member anda free valve opening, of a valve-part normally closing the same, aslotted tubular casing above said 'valv` -part, a relatively .longspring therein ating against said valvepart, a member `extending throughsaid slotted casing for varying the tension of the spring, and means forsecuring said member at predetermined points alongsaid casing forinsuring positivelpressure Within the inhaling device; all` visibly andaccessiblymounted upon the inhalen-member, substantially as set forth.

3. In an inhaling device, the combination justable spring governingvalve, a gage and mea-ns for setting the ten- 1,247.4,ee1- y with -asubstantially bell-shaped body-portion formed of celluloid and free fromobstructing members externally and internally thereof, of suitable inletand outlet niembers connected therewith, and a soft rubber apronequipped vwith a. peripheral pneumatic ciishionysaid cushion beingnormally positioned beneath the lower edges or riin yof saidbody-portion,substantially asset forth. 4. In an inhaling device, thecombination with a substantially bell-shaped body-portion, formed4oftransparent material having unobstructed Sides, of suitable inlet andoutlet members connected therewith, a peripheral pneumatic cushionpositioned adjacent to the rim or edges of the Abody-portion, and

an inilating valve and stem therefor extending alongside 'of the'-pneumatic cushion in view through position not to' obstruct the saidbody-portion, substantially as set-forth..`

5. In an inhaling device, the combination With-` a substantially.bell-shaped body-por. tion, formed oftransparent inateriahof a gas inletdisposed'upon the body-portion, and

a 'positive pressure valve, comprising an `ad-' the tension of the sionof the spring at the different points indicated by the gage; all visiblyLand accessibly mounted upon the body-portion, substantially as setforth. l

6. Thecombination with an inhaling device having' an inhaler member, ofa valvepart governing the eihalatidn therefrom, a gage and adjustingmeans controllable therefrom for regulating thevalveyand accuratelyvarying the eXhaling-pressure from said device; all visibly andaocessibly mounted upon the inhalcr-member, substantially as set forth.

7. Inapparatus o'f the class described, the combination with asubstantially bell-shaped member of transparent celluloid havingunobstructed sides, of inlet and outlet valves positioned wholly uponthe top of said body portion and a pneumatic cushion disposed upon thelower edges of said body portion, whereby its sides are entirely freeand unobstructed, substantially' as set forth.

8. In a facial inhaler, the combination witli'ran open-bottombell-shaped body-portion, tfifmeans for sealing its edges in engageiientwith the face of the patient, a gasinlet, a an adjustable-pressureexit-valve, impr-Ising 'a valve-part, a coiled spring f longer than thediamoter'of said valv part, pres-l means for adjustably tensioning thesure of said spring upon the'valve'fpartsub1V stautially throughout thelength `of the spring, anda gage for indicating such adjustment; allvisibly and accessi ly mounted upon the body-portion, substantially as'set forth.

9. In apparatus 'of the class described. the

character, of ex alinx eombination with a substantially frust0- conicalinhalin member of transparent positioned thereon; t e former comprismg.a valve member, a relatively long light pressure spring, a gage, andmeans for adjusting the spring 1n accordance with the indications of thegage; all aceessibly mounted and inhaling valves upon the inhalingmember, substantially as set forth.

In testimony whereof I do now affix my signature in the Ilresence of twowitnesses. CHAR ES K. TETER. [ns] Witnesses:

BELL,

ALBERT LYNN LAWRENCE.

